The rest of the story is here:For First Time, Chimps Seen Making Weapons for Hunting
By Rick WeissWashington Post Staff Writer
Friday, February 23, 2007; Page A01
Chimpanzees living in the West African savannah have been observed fashioning deadly spears from sticks and using the tools to hunt small mammals -- the first routine production of deadly weapons ever observed in animals other than humans.
The multistep spearmaking practice, documented by researchers in Senegal who spent years gaining the chimpanzees' trust, adds credence to the idea that human forebears fashioned similar tools millions of years ago.
http://www.washingtonpost.com/wp-dyn/co ... 01007.html